I'm more curious as to why the Singaporean government has yet to accept the assistance. While Singapore may wish to protect its sovereignty when it comes to law

I'm more curious as to why the Singaporean government has yet to accept the assistance. While Singapore may wish to protect its sovereignty when it comes to law enforcement (i.e. police), I feel more unsafe knowing that the police investigation was lacking (and possibly closed, considering they've considered it a suicide) compared to what the FT has reported. Not a good thing for a country widely perceived as having little crime.